Mining car



C. D. SENSENECHE MINING CAR Filed Angus?. 1.9, 1925 V. lw/

INVENTOR WITNESSES:

2 wwwa 6mm@ that shall positively' press the car wheels`- Aagainst the rails regardless of ,unevenness- Patented Apr. 27, 1926. 'f

UNITED S'arss cnnsrnn D. sENsnNIoH,` or mwna yPENNsvmra'NIA.v

MINING can..

Application mea Angustia, 1ers." serial No'. 51,114;

To all whom z't may concern.' I

Be it, known that I, CHESTER D. SEN'- snNioI-i', a citizen of the United States, and a' resident of Irwimv in the county of Westmrelaud and State of Pennsylvania, have invented a new and useful Improvement in Mining Cars, of which the following is a specification.

My invention relates to mining machinery and particularly to mining cars.

One object of my invention is to providea mining car having a metal bottom such that the car wheels shall follow the irregw' larity of the track over which it operates.

Another' object ot my invention is to rovide a mining car, the trucks of which s iall follow the unevenness and irregularities vot the track over which it operates, because of the flcxibili( y of the connection between the ear bottom and the car trucks.

Another object of my invention'is to pro vide a mining car having a metal bottom` and irregulz-Yrities therein..

A iin-ther object of my invention-1s to provide a mining car having a metal bottom that is provided with a plurality 0f upwardly formed recesses for the reception of springs for positively pressing the Wheels against the rails. y

Yet :mother object of my invention is to provide a mining car having Va metal bottom provided with upwardly formed 4recesses that house springs lor positively pressing the car wheels against the rails so that the overall height of tlxecar is not increased by reason of the presence of the springs.

Yet another object o my invention is to provide a metal bottomed mining 'car with springs interposed between the metal'bottom and the car journals, such that the metal bottom normally rests .directly on the car journals and the springs are compressed within recesses formed at the expense of the cubical contents of the car and ivithout add-o ing any additional height to the car.

In mining cars heretofore, l'it was found to be necessary to employl wooden bottoms, preferably ofoak, by reason of the fact that the cars-operate over very uneven and wregular tracks. It has been customarto fix the car bottoms directly tothe car journals and accordingly, as a ear moves over an ir regular track, the wheels move upwardly and downwardly in an irregulargmanner, in

ities 6 therein. liy the use of theterm accordance with the'rise, and fall of the rails. The presenceof timber inthe bottom of the ca r enabled it .to warp and twist in order that the weight might' be uniformly distributed u'pon the wheels.

llVith the use of metal car'- bottoms, it isnecessary to employ metal'of sufficient gauge to prevent the warping of the car as a whole; The result of this construction is that,'as the car passes over an irre lar track, first one,

and then another whee is substantially free from the track with the result that the carI frequently tumbles from the rail with the consequent inconvenience vincident thereto.A

-Theincrease in vscarcity of suitable voak timber is compelling manufacturers to adopt a metal car bottom'. Also when working thinveins of coal, the economy in the overallhelght of the car gained by the use oi metal bottoms over Iwooden bottoms is 'pronounced." .metal bottom of .one quarter .nch gauge will replace a three inch oak. car

-'bottom.' The.' resulting savinnoi two and three quarters inches inthe height of a minl mg carcnables the mine operatorto use the car in a much thinner coal vein or to increase the height of the car-body and therey'thc cubical contents of the car for use in,

i her coal veins.`

y my invention, I propose to employ a metal car-bottom that shall have sutiicientv rigidity to prevent the warping of the car bottom and at the same time rovide means,

disposed'xvithin the outline o .the car'body, for pressing the wheels againstl the rails with suticient force to cause the wheels to follow the unevenness therein w1 hout cansin the car to tumble from the tracks.

In the accompanying drawings, y Fig. lisa view in elevation of a Wooden mining car now in use. f f I .-Fig. 2 is a view-partially` in elevation and partially inisection of a mining car'embodyingr my invention. A ig. 3 is a similar view of a modified form of my invention, and

Fig. 4 is a view in elevation-of a car truck shown in Fig. 2. A

Referring to Fig. 2 my invention 'comprises in general a -mining car l that is provided with a metal bottom2 for supporting a body '3 on suitable trucks 4 for o lowing a track 5 having unevenness and irregularmine car, I do not intend to be limited to the use metal, such as steel plate, that is of such A auge as to support the car body 3 and the oa g or twistin In pracare cap y of nianyindustrial auchl as.

in clay mines, quarries, etc.

The car-bottom2 lis preferably of sheet -witliout 'sag tice, the metal plate .2 is .genera y of about one quarter inc f'gauge',-although the exact gauge' of the .platevarieswith the workmg requirements to'be considered with the design of each'car. The 'car bottom'` 2 is procarlbottom'2 beneath the recesses 7 by boltsl 9. 5Ea`clr'truckcomprises a journal 1l that normally "rests against the car bottom 2 vfor supporting an axle 12 on whichfare mounted the wheels 13. -A'strap 14 issl'ng" from the car bottom 2 to cooperate with bolts 15 to eervefas `a.guideway for the journal 11 1n its movingrelative-to the car bottom 2. A

'to serve as 'the-*sentanr a' coilsprmg 17 that extendsupwardly the recess and eliprimarypurpose of the coil springs 417 isvto expand downwardly, thereb pressing upon thetrucks 4 in order t at the wheels "13 shall follow the irregularity in the 'truck 5 `without V being lifted therefromwhen assing over irregularities l6 by reason of' the miiexibility ofthe car bottom 2. Such- 'weight as thespring 17 carries'i's a `second ary .consider-ation, as the main car `weight is Aborne b'yj' thefdirect engagement between". `the-car journals and thecarhottom 2.

-Beferring to Fig'. .1, I have shown a car 3" hav-ing a wooden carbottom 18,( t`hat warl s or twists afs `at '19, when'passing'over t e larities 6, by. reason ofl'the in herent flexibilityof the wood in the ,c ar botf. torn 18. Such wood is usually three inchy loak plank. In this construction,car,jour

nals 21 are'bolted directly tothe car bot-- tom 18.

LA. com arisen of the cars shown in'Figs. 1

and 2 w' show that they are cars of similar volumes although the car, having the metal bottom2 istwo and threev uarter inches llower thanthe wooden car. owever, provision bemade withthe metal bottomed `cantor causing the wheels 13 to follow the irregularities 6 'in the cars 5."

Such is the urpose ofthe particularconstruction of t e car journals 4, the cooperating springs. 17' and the recesses 7.

In the operation of a car embodying. my

lmetal bottomed mining car in which sion 1s made for causing the wheels t0' lollowinventionthe bottom 2 moves along in substantially the same .horizontal plane,'but i since one track 5-.l1as the irregularity 6 l -tom' 2 and supports t 1e' weight thereof, and.

when the'whcel 13vis rigidl lsecuretltofthe car bottom 2, there is a .ten ency'to liftl certherein the vertical distances between its tain of the wheels y13 -'from the track iand cause .the c'ar' to tumble from the track.- With myin'vention, whensuch conditions arise, the springs 17 expand between the Car journalsll and the plates 8 and exertsnoh a downward pressure on their 'ass0ciated`-' journals 1l as to cause them to move down- 'wardlyalong the guide. strap 14' andthebolts 15. with such pressure tothe 'affected wheels 13 to follow the track 5. When the tracku5 and t-hel lane of the f.car bottom 2 are again in para el relation, the springs 17 are compressed` within the recesses 7.'

By compressing the springs 17 within' the outline vof the' car bottom, aneeonomy in the height-of the car yis obtained 'since the' ad-' 'vantagesof springs17 are obtained while the car ridcs 'directlyupon' the journals l1' without increasing the overall heightof the 16 is formed ion eaoh'of the journals 11" of stltl'ening the car bottom. In this form of my invention the journals 26 move within the flanges 2 7 of the channel-irons v2G. The channel-irons 25 are provided with openings .427 through which the springs 17 pass. flu' other details, this form of m invention is :similar to the modifications s own and described in connection with. Fig. 112.

It will thusbe seen. that I have devisedia the irregularities and unevenness'of "thel .tra'ck'. while the carbottom itself remains in a horizontal plane. lThe wheels are' caused" .to follow the car track because of the` down ward' directed pressure 'exertedupon then rovilll) by- SPl'DgS extending upwardly. into 'recesses j -ll `in the car body."

It is to Vbe understood'thatsuch 'changes'p .I

may be made inthe "shape, disposition 'and parts' as -falhlg0 arrangement of the several vwithin the scope of the 4annexed 'claimaj I claimas niYfinventionJL- 1. In'a mine car, a metalbottolil', a plural-' ity of wheels, connecting axles, journals :for

the axles normally indirect conta kt with' the' car bottom, a supporting' trackfand means track'regarldless ofvunevenness therein. g. l I

A 2. In a mine car, a Emetal'botto in, a'plurall car bottom, a supporting track, andineans disposed between the journals and'car bot-V lit *ity of'wlieels, connecting thev .a,` l'es normally in direct Contact with the .i (ear bottom, a supporting' track` and' springs dispose i tom for pressing the Wlieelsjagainst the track regardless of 'unevenne'ss thereof.

In a mine cai-,qa metal bottom, a pluralhv ity of wheels, connecting axles, journals/fior the axles normally in direct contact with the car bottom, a supporting track, and means disposed between the journals and car, bottom for holding the wheels against the track regardless of variations inthe distances between `the car bottom and the track by reason of unevenness therein.

Avet. -In a mine car, a metal bottom, aiplural-Vk ity of wheels, connecting axles, journals` r for the axles normally in direct contact Withthc car bottom, a', supporting track and'meansI engaging thev o urnals and nested in the bottom of the car for pressing the wheels against the track.

5. Inn' mine car, a metal-bottom,a plurality o f Wheels,connecti iig axles, jonrnalsfor.

the axles normally in direct contact with the car bottom, 'a supporting track, and'means disposed above each journal and nestedili" the c'a'rl bottom "for` pressing .the -1.whe'els against the track f c" 6. Ina mine car, a. metal bottom, aplurality of wheels; connecting axles, journals' for the axles normally i'n direct contact `w-itlrf the car bottom, a supporting track, and

means disposed' aboveijthel journals in vre- `h cessesformed 'in the car bottom for pressing the wheels against the track.l

.7. Ina. mine car, a metal'bottom, a plural-- ity of wheels,- connecting axles, journals for f th'eaxles normally in direct contact with the car bottom, a supporting track, andmeans disposed above the; journals in recesses formed inthe car bottom and projecting into 'the'interior tliereoffor pressing the Wheels against the track.

8. vIn a `mii-ie car, a metal bottom, a plurality of wheels, connecting. axles, journals -for the axles normally in direct contact with the carubottom', a. supper-'ting track, and springs disposed "above the journals' in recessesl formed in thev car bottom and projecting .wheels aga-.inst th'et'rack.

.In amine ca ig," a metal bottom, a pluralvaxles, 'journals for into the interior of thecar for pressing the i h ftheV under surface thereof, and pressure cominto the interior of the carl for pressing the .wheels against, the track Without adding to vthe height of the car.

pensating means disposed in the recesses between the car bottom andthe several journals, vthe recesses being of such a depth as to extend'into the interior of the car.

' 12a In a vcar structure, a plurality of journals, 'a 'metal car bottom directly engaging andnpported by the journals, the car bota'ving a plurality of recesses formed in pensatir'ig means disposed in the recesses between thecar'bottom and the several jour? nals,.tlie recesses being of-sucli a de ith that substantially 'their entire volume is taken rom the volume of the car.

13. In acfar structure, a metal car bottoni avin-g a recess therein, a car journal normallyengag'ing the car bottom, and a spring disposed in the recess between the car bottom and the journal.,

14. In a car structure, a metal car bottom, a car journal normally directly engaging the car bottom, and space compensating means .disposed between the journal and car bottom at the expense of the car volume.

-l5.. n a car structure, a metal car bottom,

a'rcar journal normally directly engaging the car bottom, and space coinpensating meansv i, 16. In a car structure, a 'metal bottoni, a

-journal member normally directly engaging the bottoinand a spring interposed between the bottoni and journal and disposed iii a recess in one of them. ,1,

In testimony whereof, I have hereunto gbsc'ribed my name this 112th: day ot August Sii 

